Various logging fixes (#164)

Various logging fixes:
* imported the ObjCWrapper and updated the MXLogger. Also added back support for app containers
* updated MXLog.swift from El and fixed/improved its logging format
* updated most app log strings
* Remove unnecessary swiftlint rule
* Various tweaks following code review
* Added back type annoation on MXLogger logFiles method
* Fix generated Swift-ObjC header name

ElementX/Sources/Screens/Authentication/AuthenticationCoordinator.swift

@@ -95,7 +95,7 @@ class AuthenticationCoordinator: Coordinator, Presentable {
             case .updated:
                 self.showLoginScreen()
             case .dismiss:
-                MXLog.failure("[AuthenticationCoordinator] ServerSelectionScreen is requesting dismiss when part of a stack.")
+                MXLog.failure("ServerSelectionScreen is requesting dismiss when part of a stack.")
             }
         }
         

ElementX/Sources/Screens/Authentication/LoginScreen/LoginCoordinator.swift

@@ -76,11 +76,11 @@ final class LoginCoordinator: Coordinator, Presentable {
     // MARK: - Public
 
     func start() {
-        MXLog.debug("[LoginCoordinator] did start.")
+        MXLog.debug("Did start.")
         
         loginViewModel.callback = { [weak self] action in
             guard let self = self else { return }
-            MXLog.debug("[LoginCoordinator] LoginViewModel did callback with result: \(action).")
+            MXLog.debug("LoginViewModel did callback with result: \(action).")
             
             switch action {
             case .selectServer:
@@ -204,7 +204,7 @@ final class LoginCoordinator: Coordinator, Presentable {
     
     /// Presents the server selection screen as a modal.
     private func presentServerSelectionScreen() {
-        MXLog.debug("[LoginCoordinator] presentServerSelectionScreen")
+        MXLog.debug("PresentServerSelectionScreen")
         let parameters = ServerSelectionCoordinatorParameters(authenticationService: authenticationService,
                                                               hasModalPresentation: true)
         let coordinator = ServerSelectionCoordinator(parameters: parameters)

ElementX/Sources/Screens/Authentication/ServerSelection/ServerSelectionCoordinator.swift

@@ -64,11 +64,11 @@ final class ServerSelectionCoordinator: Coordinator, Presentable {
     // MARK: - Public
     
     func start() {
-        MXLog.debug("[ServerSelectionCoordinator] did start.")
+        MXLog.debug("Did start.")
         
         serverSelectionViewModel.callback = { [weak self] action in
             guard let self = self else { return }
-            MXLog.debug("[ServerSelectionCoordinator] ServerSelectionViewModel did callback with action: \(action).")
+            MXLog.debug("ServerSelectionViewModel did callback with action: \(action).")
             
             switch action {
             case .confirm(let homeserverAddress):